They took out the mermaids and water tank that gave this show its name, froze the water, and added ice skaters and some increased production values. If the show is now the one in town that most closely resembles the guffaw-inducing extravaganza in Showgirls, it's nonetheless a considerable improvement over its previous incarnations. That may be because we are partial to ice skaters in any form, even if they are performing to the music from Titanic while topless dancers preen on a small version of the deck of the boat. The weird lip-synching numbers, including a long tribute to Madonna that reenacts portions of Evita, even as clips from the real thing are shown on video screens, still remain, though improved and more ambitious choreography has been added. Expect up-close looks at bare breasts as the flashy and not-terribly-competent dancers parade through the crowd (sometimes in see-through filmy net cat suits that show less and are thus considerably more sexy -- more topless shows should go this teasing route). Some "comedy gauchos" crack whips and insensitive jokes, and there's a truly talented trio of juggling brothers. Pass the time wondering if it's uncomfortable skating in a butt thong, and pondering the philosophical implications of a country's wretched political problems providing fodder for first the Andrew Lloyd Webber mill and now a Vegas topless revue. Seating warnings: Seats on the sides are so bad that fully three-quarters of the stage might be obscured.